The principle and significance of best long range laser pointer
The laser pointer that remotely controls the projection screen of the projector, the laser pointer is wirelessly connected to the computer, and the computer is connected to the projector. : The laser emission module is used to shoot the laser to the position on the projection screen where the user needs to operate when the user triggers the laser emission switch; the camera module is used to shoot the laser to the projection screen when the user triggers the click button module. The picture of the position that needs to be operated; the image analysis and control module is used to analyze the picture taken by the camera module that shoots the blue laser pointer to the position that the user needs to operate on the projection screen.
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The remote control laser pointer is composed of an RF radio frequency remote control and a receiver (USB interface). The RF radio frequency remote control is embedded with a wireless RF radio frequency transmitter. When in use, you only need to insert the receiver into the USB interface of the computer host without installation. The driver can work normally, and the user only needs to click the relevant function keys of the RF radio frequency remote control to operate the receiver. And the transmitter does not need to be aimed at the receiver, which truly embodies wireless freedom. Of course, since it is called a laser pointer, the indispensable thing is the laser pointer, which is divided into two types: red light and green light. In order to obtain the relative coordinate position information of the laser bright spot in the projection screen; the wireless signal transmitting module is used to send the click operation information and coordinate position information sent by the image analysis and control module to the computer wirelessly to improve the convenience of operation.
2021-09-24 11:12:36
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